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Lobosea: Testacealobosia: Arcellinida: Difflugina (formerly Arcellina): Hyalospheniidae

 Hyalosphenia elegans
Leidy

Hyalosphenia elegans Genus: Test ovate, discoid in cross-section; pseudostome a terminal slit (Illustrated Guide, 1985).
Species: Test flask-shaped, μm long, μm wide (Cash, The British Freshwater Rhizopoda and Heliozoa vol. II, 1909).

Hyalosphenia elegans Leidy, test 109 μm long, 56 μm wide, L/W=, pseudostome 18 μm wide, x 640, No.1, Shirakaba-Yachi, Komado marsh (No.6), Showa village and Tajima town, Fukushima Pref., Japan, May 21, 2007, by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Hyalosphenia elegans Hyalosphenia elegans Hyalosphenia elegans Hyalosphenia elegans Hyalosphenia elegans Hyalosphenia elegans Hyalosphenia elegans

Images of collecting locality: No.1, Shirakaba-Yachi, Komado marsh (No.6), Showa village and Tajima town, Fukushima Pref., Japan, May 21, 2007, by Y. Tsukii

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